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A city full of superheroes? Boulder, Colorado seems to be the place for the extremely physically fit, drawing those who love the outdoors to its 30,000 acres of unspoiled land, 200 miles of trails, and city-centre paths and rivers. Of course, it’s in the foothills of the Rocky Mountains, a (Boulderian) stone’s throw from skiing and snowshoeing.

*Prices are based on 1-21 day travel. These are the best fares found by travellers who searched TripAdvisor and a select group of our fare search partners in the past 72 hours. Ticket prices and seat availability change rapidly and cannot be guaranteed.

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